Volume 2 Issue 1

Volume 2 Issue 1

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Research Article

Homeologous Exchange and Segregation Generate Genetic Diversity in Resynthesized Brassica napus for Ten Generations Following Allopolyploid Formation

Tina Wang#, Alexandra Barbella#, Lauren Kearney, Holly Maulhardt, Emily Carnahan, Maya Benavides, Alan Chavez, Robert Gaeta, J. Chris Pires, Edward Himelblau*

Allopolyploids are typically produced by hybridization between species followed by whole genome duplication (WGD). Many plant species including a number of important crops are allopolyploids or are diploids with evidence of allopolyploidy in their evolution. Researchers use resynthesized allopolyploids to study the genetic changes that accompany hybridization and WGD. The Brassica species represent a well-established example of allopolyploidy and resynthesized Brassica allopolyploids have been useful tools for studying the genetic effects of allopolyploid formation.

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    Review article

Cytokinins – Their Chemical Structure, Occurrence, Metabolism and Biological Activity

Agata Jabłońska-Trypuć*

Cytokinins are a group of plant hormones which play an important role in plant growth and development. They especially influence seed germination, de-etiolation, chloroplast differentiation, apical dominance, flower and fruit development and leaf senescence. Molecular and genetic analysis provided valuable insights into the molecular mechanisms of cytokinins action. This review focuses on the cytokinins occurrence, chemical structure and primarily on their metabolism, signaling and biological activity. The analysis of all those factors is necessary to understand the impact that they have on plant physiology and their role as developmental signals. 

 

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